A nurse understands that the basic premise of an ECG is that it shows
a. altered electrical activity from pathologic changes.
b. damage to the valves inside the heart.
c. the status of the client's coronary arteries.
d. the approximate time since a myocardial infarction occurred.
A
The ECG provides multidirectional examination of electrical events in the heart. Myocardial in-farction causes tissue damage/death, which alters the electrical activity in predictable patterns. This altered electrical activity shows up on the ECG as abnormalities that help diagnose the oc-currence and location of an infarction.
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A nursing manager has overheard the nursing staff comment about the current incentive offered to staff for taking additional overtime hours. An employee?s perception of the value of the incentive is:
1. Expectancy. 2. Valence. 3. Instrumentality. 4. Worthiness.
The hormone necessary for milk production is:
a. Estrogen. b. Prolactin. c. Progesterone. d. Lactogen.
Constancy of conditions is often enhanced through which of the following?
A) Collect data at the same time every day B) Using a crossover design C) Maximizing the external validity of the study D) Avoiding carryover effects
The nurse on the pediatric unit is assigned to an infant with gastroesophageal reflux. The infant has had episodes of pneumonia and is not gaining weight
The infant has not responded well to 6 weeks of medical management and is being considered for surgery. At the beginning of the shift, after receiving report on this infant, the nurse will first: a. read the infant's chart or computer record b. weigh the infant c. assess respiratory status d. check the medication administration record and set up medications